The prime factorization of 71421 is 3 x 7 x 19 x 179 but that's probably not what we're dealing with here.
7
2 x 7 = 14
3 x 7 = 21
The LCM and GCF refer to the set as a whole, not the individual numbers.
The GCF of 7, 14, 21 is 7
The LCM of 7, 14, 21 is 42
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When all the factors are prime numbers, that's a prime factorization.
A prime number has no factors other than 1 and the number itself. If prime factorization of a number reveals one or more additional prime factors, the number is a composite.
Prime factorization is when you find all the prime factors of a number.
Expressing a number as the product of its prime factors is known as the prime factorization. The prime factorization of 30 is 2 x 3 x 5.
prime factorization